Adjustment of the redis.auto.conf

**Background**
The Redis server in the indigo-service backend logs to files. This is not optimal for Docker images. The Redis service can also run as a non-root user.

**Solution**
Adjustment of the redis.auto.conf -> https://github.com/epam/Indigo/blob/1b5bb8808b73b6613d2e96b9a95eefc6b1a15b02/utils/indigo-service/backend/conf/redis.auto.conf

```
[program:redis]
command=redis-server
autostart=true
autorestart=true
user=nobody
redirect_stderr=true
stdout_logfile=/dev/stdout
stdout_logfile_maxbytes=0
```

**Alternatives**
--

**Additional context**
--

Open utils/indigo-service/backend/conf/redis.auto.conf and compare it with the configuration shown in the issue. Check the Redis service settings for non-root execution and Docker-compatible stdout logging; done means the file reflects the requested settings.

Written by the indexing model from the issue text.